Javascript 如何在一页上显示多个幻灯片

我在一个HTML页面上设置了两个幻灯片。但它们是相互冲突的

更改一个幻灯片将更改另一个幻灯片。 此外，两个幻灯片中都会出现空白幻灯片

它和使用相同全局索引数组的两个幻灯片有关

有人能帮我修一下密码吗

HTML

JavaScript

var slideIndex = 0;
showSlides();
var slides,dots;

function showSlides() {
    var i;
    slides = document.getElementsByClassName("mySlides");
    dots = document.getElementsByClassName("dot");
    for (i = 0; i < slides.length; i++) {
       slides[i].style.display = "none";  
    }
    slideIndex++;
    if (slideIndex> slides.length) {slideIndex = 1}    
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[slideIndex-1].style.display = "block";  
    dots[slideIndex-1].className += " active";
    setTimeout(showSlides, 8000); // Change image every 8 seconds
}

function plusSlides(position) {
    slideIndex +=position;
    if (slideIndex> slides.length) {slideIndex = 1}
    else if(slideIndex<1){slideIndex = slides.length}
    for (i = 0; i < slides.length; i++) {
       slides[i].style.display = "none";  
    }
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[slideIndex-1].style.display = "block";  
    dots[slideIndex-1].className += " active";
}

function currentSlide(index) {
    if (index> slides.length) {index = 1}
    else if(index<1){index = slides.length}
    for (i = 0; i < slides.length; i++) {
       slides[i].style.display = "none";  
    }
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[index-1].style.display = "block";  
    dots[index-1].className += " active";
}

var slideIndex=0；
放映幻灯片（）；
var玻片、圆点；
函数showSlides（）{
var i；
幻灯片=document.getElementsByClassName（“mySlides”）；
dots=document.getElementsByClassName（“dot”）；
对于（i=0；islides.length）{slideIndex=1}
对于（i=0；islides.length）{slideIndex=1}
else if（slideIndex slides.length）{index=1}
else if（索引
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;

}



.slideshow1 {
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    height: 75vh;
    width: 100%;
    position: relative;
}
.slideshow1 .color_layer {
    background-color: rgba(0,0,0,0.5);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.slideshow1 .wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 800px;
    text-align: center;
}
.slideshow1 .text1 {
    font-weight: bold;
    color: white;
}
.slideshow1 .text2 {
    font-weight: 200;
    color: white;
}

.slideshow_dots {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #717171;
}






/* Slideshow */
.slideshow1 .mySlides {
    display: none;
    height: 75vh;
}
.slideshow1 .mySlides img {
    height: 100%;
    object-fit: cover;
}
.slideshow1 .slideshow-container {
    position: absolute;
    left: 0;
    top: 0;
    right: 100%;
    bottom: 100%;
    width: 100%;
}
/* Next & previous buttons */
.slideshow1 .prev, .slideshow1 .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    padding: 16px;
    margin-top: -22px;
    color: white;
    font-weight: bold;
    font-size: 18px;
    transition: 0.6s ease;
    border-radius: 0 3px 3px 0;
    background-color: dodgerblue;
}
/* Position the "next button" to the right */
.slideshow1 .next {
    right: 0;
    border-radius: 3px 0 0 3px;
}
/* On hover, add a black background color with a little bit see-through */
.slideshow1 .prev:hover, .slideshow1 .next:hover {
    background-color: rgba(0,0,0,0.8);
}
/* The dots/bullets/indicators */
.slideshow1 .dot {
    cursor: pointer;
    font-size: 12px;
    margin: 0 5px;
    color: #717171;
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.6s ease;
}
.slideshow1 .active, .slideshow1 .dot:hover {
    color: #bbb;
}
/* Fading animation */
.slideshow1 .fade {
    -webkit-animation-name: fade;
    -webkit-animation-duration: 2s;
    animation-name: fade;
    animation-duration: 2s;
}
@-webkit-keyframes fade {
  from {opacity: .4}
  to {opacity: 1}
}

@keyframes fade {
  from {opacity: .4}
  to {opacity: 1}
}

/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
  .text {font-size: 11px}
}








.slideshow2 {
    width: 100%;
    height: 500px;
    margin: 30px 0;
    position: relative;
}
.slideshow2 .img {
    width: 50%;
    height: 500px;
    float: left;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    position: relative;
}
.slideshow2 .subdiv {
    width: 50%;
    height: 500px;
    float: left;
    padding: 10px 5% 10px 2%;
    display: table;
    box-shadow: outset -200px 0 110px 0 #000000;
}
.slideshow2 .subdiv .wrapper {
    display: table-cell;
    vertical-align: middle;
}
.slideshow2 .subdiv .wrapper #quote {
    color: #2b2b2b;
    line-height: 30px;
    margin-top: 25px;
    font-size: 20px;
    letter-spacing: 1.5px;
}
.slideshow2 .subdiv .wrapper #quoter {
    color: #747474;
    margin-top: 25px;
    font-size: 20px;
}
/*Slideshow*/
.slideshow2 .slideshow-container {
    height: 100%;
    width: 100%;
}
.slideshow2 .slide-1 {
}
.slideshow2 .slide-1 .img {
    background-image:  linear-gradient(to right, rgba(255,255,255,0) 50%,rgba(255,255,255,1) 100%), url(https://cdn.pixabay.com/photo/2014/12/15/17/16/pier-569314__180.jpg);
}
.slideshow2 .slide-2 {

}
.slideshow2 .slide-2 .img {
    background-image:  linear-gradient(to right, rgba(255,255,255,0) 50%,rgba(255,255,255,1) 100%), url(https://cdn.pixabay.com/photo/2016/04/15/04/02/water-1330252__180.jpg);
}
.slideshow2 .slide-3 {

}
.slideshow2 .slide-3 .img {
    background-image:  linear-gradient(to right, rgba(255,255,255,0) 50%,rgba(255,255,255,1) 100%), url(https://cdn.pixabay.com/photo/2016/03/04/19/36/beach-1236581__180.jpg);
}
/* Next & previous buttons */
.slideshow2 .prev, .slideshow2 .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    padding: 16px;
    margin-top: -22px;
    color: white;
    font-weight: bold;
    font-size: 18px;
    transition: 0.6s ease;
    border-radius: 0 3px 3px 0;
    background-color: dodgerblue;
}
/* Position the "next button" to the right */
.slideshow2 .next {
    right: 0;
    border-radius: 3px 0 0 3px;
}
/* On hover, add a black background color with a little bit see-through */
.slideshow2 .prev:hover, .slideshow2.next:hover {
    background-color: rgba(0,0,0,0.8);
}


var slideIndex = 0;
showSlides();
var slides,dots;

function showSlides() {
    var i;
    slides = document.getElementsByClassName("mySlides");
    dots = document.getElementsByClassName("dot");
    for (i = 0; i < slides.length; i++) {
       slides[i].style.display = "none";  
    }
    slideIndex++;
    if (slideIndex> slides.length) {slideIndex = 1}    
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[slideIndex-1].style.display = "block";  
    dots[slideIndex-1].className += " active";
    setTimeout(showSlides, 8000); // Change image every 8 seconds
}

function plusSlides(position) {
    slideIndex +=position;
    if (slideIndex> slides.length) {slideIndex = 1}
    else if(slideIndex<1){slideIndex = slides.length}
    for (i = 0; i < slides.length; i++) {
       slides[i].style.display = "none";  
    }
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[slideIndex-1].style.display = "block";  
    dots[slideIndex-1].className += " active";
}

function currentSlide(index) {
    if (index> slides.length) {index = 1}
    else if(index<1){index = slides.length}
    for (i = 0; i < slides.length; i++) {
       slides[i].style.display = "none";  
    }
    for (i = 0; i < dots.length; i++) {
        dots[i].className = dots[i].className.replace(" active", "");
    }
    slides[index-1].style.display = "block";  
    dots[index-1].className += " active";
}